betrayer Meaning, Definition & Usage

  1. noun one who reveals confidential information in return for money
    squealer; informer; rat; blabber.
  2. noun a person who says one thing and does another
    double-crosser; traitor; double-dealer; two-timer.

WordNet


Be*tray"er noun
Definitions
  1. One who, or that which, betrays.

Webster 1913